英语词汇“分貝”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	分貝
释义	分貝 fēn bèidecibel表示两种电或声功率之比的一种单位,它等于功率比的常用对数的10倍——缩写为dB∶表示两种电压或电流值或类似声量如声压或质点速度之比的一种单位,等于电压或电流比的常用对数的20倍,如果两种电压或电流是在相同电阻上测得的话电信一种测量声音的相对响度的单位,大约等于人耳通常可觉察响度差别的最小值；人耳对响度差别能察觉的范围,大约包括以最微弱的可闻声为1而开始的标度上的130分贝简体分贝
随便看	socket union socket, unshot toe socketwall outlet socket washer socket wedge socket weld Socket welded wedge gate valve socket weld ends socket welding socket welding and threaded unions socket welding end socket welding fitting socket-welding fitting socket-welding flange socket welding type socket with lock actuated by switch socket wrench socket-wrench socket wrench adapter socket wrench crossbar socket wrenches Socket Wrenches for Spark Plugs socket wrench extension bar socket wrench set socket wrench with bar